Coefficient of Conservatism:
Coefficient of Wetness:
Borders of rich forests, floodplains and other swamps, river banks, sand dunes; spreading to shores, fields, and other open usually moist places; sometimes planted.
Both subsp. monilifera with long acuminate leaf apices and usually only two conspicuous glands along the leaf margin at the petiole and subsp. deltoides with often more short acuminate leaf apices and glands variable in size and number, but usually smaller and more raised (sometimes essentially absent) are widespread in Michigan. The differences are subtle and some collections are hard to place.